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47 Current news about the topic catalysts

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A splash of detergent makes catalytic compounds more powerful

05-Jun-2018

Researcher David Rosenberg examines images of a white powder under a powerful scanning electron microscope. Up close, the powder looks like coarse gravel, a heap of similar but irregular chunks. Then he looks at a second image — the same material produced by colleague Hongyou Fan instead of ...

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Designer cells: artificial enzyme can activate a gene switch

A new kind of chemistry in living organisms

24-May-2018

Complex reaction cascades can be triggered in artificial molecular systems: Swiss scientists have constructed an enzyme than can penetrate a mammalian cell and accelerate the release of a hormone. This then activates a gene switch that triggers the creation of a fluorescent protein. The findings ...

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New catalyst turns ammonia into an innovative clean fuel

02-May-2018

Taking measures against climate change and converting into societies that use significant amounts of renewable energy for power are two of the most important issues common to developed countries today. One promising technology in those efforts uses hydrogen (H2) as a renewable energy source. ...

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Salt boosts creation of 2-D materials

23-Apr-2018

A dash of salt can simplify the creation of two-dimensional materials, and thanks to Rice University scientists, the reason is becoming clear. Boris Yakobson, a Rice professor of materials science and nanoengineering and of chemistry, was the go-to expert when a group of labs in Singapore, China, ...

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Synergy of two catalysts in one flask

Exploration of a new chemical synthesis process for medications

15-Mar-2018

Most medications, agricultural chemicals and functional materials, indispensable for maintaining and improving our lives, are composed of organic molecules. Organic synthesis using a catalyst is the method for the rapid and large scale supply of such organic molecules without imposing a heavy ...

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Photosynthetic microalgae as biocatalysts

The biocatalytic production of chemicals should become considerably more sustainable

06-Mar-2018

A carpet of blue-green algae can literally ‘cloud’ the summer’s swimming pleasure at the lake. This is caused by a few strains of photosynthetically active microalgae, also known as cyanobacteria. Other harmless strains of cyanobacteria have great potential for biotechnological applications and ...

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Nanostructuring increases efficiency of metal-free photocatalysts by factor eleven

Solar–to-hydrogen conversion

02-Mar-2018

Polymeric carbon nitrides exhibit a catalytic effect in sunlight that can be used for the production of hydrogen from solar energy. However, the efficiency of these metal-free catalysts is extremely low. A team at the Tianjin University in China, in collaboration with a group at the ...

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A protein that self-replicates

01-Mar-2018

Long regarded as a biological aberration, amyloids are fibrous aggregates of short protein fragments. Amyloids have a bad reputation because they are thought to be the cause of multiple neurodegenerative diseases, including Alzheimer's, Parkinson's and Creutzfeldt-Jakob disease. It was only ...

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Newly designed molecule binds nitrogen

27-Feb-2018

Chemists from the University of Würzburg have developed a boron-based molecule capable of binding nitrogen without assistance from a transition metal. This might be the first step towards the energy-saving production of fertilisers. Whether wheat, millet or maize: They all need nitrogen to grow. ...

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Breakthrough process for directly converting methane to methanol

04-Dec-2017

The direct oxidation of methane--found in natural gas--into methanol at low temperatures has long been a holy grail. Now, researchers at Tufts have found a breakthrough way to accomplish the feat using a heterogeneous catalyst and cheap molecular oxygen, according to a paper published by a team ...

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